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FIDE ID 2158337 · born 1999 · last updated 5/12/2026
Standard
1723
Rapid
1700
Blitz
1716
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Shortlist public Lichess and chess.com accounts for Grundler Siebel via fuzzy name, country, and rating-band signals. Fastest path; works without sample games.
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Prep report
Their repertoire vs yours
Once you have a candidate account, we cross-reference its opening tree against your imported games, surfacing the lines they play that you don’t know, the leaks in their repertoire you can punish, and the gaps in yours you’ll need to plug before the game.
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We checked our stored public PGN sources for FIDE ID 2158337 and do not have usable games for Grundler Siebel yet. Paste games below to run repertoire matching by play pattern.
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